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Through casing resistivity logging technology

GWDC has developed ‘through casing resistivity logging tool’ with a breakthrough in key technologies such as weak signal measurement, signal synchronous transmission, circuit design, power supply electrode design, measuring electrode design and hydraulic pushing system design. This tool is used with LEAP800 logging platform, an interpretation model has been established, and a corresponding data processing and interpretation software has been developed. This tool has been successful tested in 188 wells to obtain good logging data.
Tool specifications: resistivity measuring range: 0-200Ω.m; applicable casing diameter: 5.5-7 inch; temperature rating: 150 ˚C; pressure rating: 100Mpa.